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https://issues.apache.org/jira/browse/TIKA-2935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17522205#comment-17522205
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Urs Honegger commented on TIKA-2935:
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This seems outdated. Mp4 based detection works with DefaultDetector when using
TikaInputStream:
[https://stackoverflow.com/questions/48021617/use-apache-tika-get-mp4-file-contenttype-got-video-quicktime/71857875#71857875]
> MP4 content type identified as application/mp4 rather than video/mp4
> --------------------------------------------------------------------
>
> Key: TIKA-2935
> URL: https://issues.apache.org/jira/browse/TIKA-2935
> Project: Tika
> Issue Type: Bug
> Components: detector, mime
> Affects Versions: 1.21
> Reporter: Steven Baskin
> Priority: Minor
> Attachments: Smile_Doctors_-_Team_Members.mp4
>
>
> Im currently trying to use Tika detector to identify the content type of the
> file attached to this ticket. Using both the default detector with default
> config in java and the {{tika-app-1.21 }}jar the type is being returned as
> {{application/mp4}}.
> According to [https://tools.ietf.org/html/rfc4337]::
> {quote}Selection of MIME Types for MP4 Files
> The MIME types to be assigned to MP4 files are selected according to
> the contents. Basic guidelines for selecting MIME types are as
> follows:
> a) if the file contains neither visual nor audio presentations, but
> only, for example, MPEG-J or MPEG-7, use application/mp4;
> b) for all other files, including those that have MPEG-J, etc., in
> addition to video or audio streams, video/mp4 should be used;
> however:
> c) for files with audio but no visual aspect, including those that
> have MPEG-J, etc., in addition to audio streams, audio/mp4 may be
> used.
> {quote}
> As the file has both video and audio components, it seems this file type
> should be identified as {{video/mp4.}}
> I was hoping to get some help in working out whether this a bug that can be
> fixed or if there is a problem on my end.
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